GY -communication outdoor optical cable; GJ -indoor optical cable; MG -coal mine optical cable

Enhanced component type

(No model) -The metal enhanced component; F -non -metal enhanced component

  Structure

D -optical fiber structure; (non -symbols) -pine layer twisted structure; X -central tube structure; G -skeleton structure; T -fill type; Z -flame retardant structure; C8 —— — 8 font self -inheritance structure

Protective layer

Y — Polyethylene protective layer; W -clamping steel wire steel -polyethylene bonding guard layer; S -steel -polyethylene bonding guard layer; A -aluminum -polyethylene bonding guard layer; V Chloride

Outer care layer

53 — Wrinkle steel banded armor container polyethylene condom; 23 -wound steel belt armor polyethylene condom; 33 — fine steel wire wrap armor polyethylene condom; 43 -crude steel wire wraps wrap polyethylene polyethylene polyethylene polyethylene polyethylene Segee; 333 — Double -layer fine steel wire waging armor veneer polyethylene protective cover